861420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{293}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 2815344

約数和(自身を除く): 1953924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 293, 294, 420, 490, 586, 588, 735, 879, 980, 1172, 1465, 1470, 1758, 2051, 2930, 2940, 3516, 4102, 4395, 5860, 6153, 8204, 8790, 10255, 12306, 14357, 17580, 20510, 24612, 28714, 30765, 41020, 43071, 57428, 61530, 71785, 86142, 123060, 143570, 172284, 215355, 287140, 430710, 861420]

約数ペア:

[(1, 861420), (2, 430710), (3, 287140), (4, 215355), (5, 172284), (6, 143570), (7, 123060), (10, 86142), (12, 71785), (14, 61530), (15, 57428), (20, 43071), (21, 41020), (28, 30765), (30, 28714), (35, 24612), (42, 20510), (49, 17580), (60, 14357), (70, 12306), (84, 10255), (98, 8790), (105, 8204), (140, 6153), (147, 5860), (196, 4395), (210, 4102), (245, 3516), (293, 2940), (294, 2930), (420, 2051), (490, 1758), (586, 1470), (588, 1465), (735, 1172), (879, 980)]